Ages 3+

Speedy Race Cars


Become a speed scientist and take a spin around the house with your own speedy race cars! Build and decorate two race cars to zip and zoom around. Learn about how wheels work, the physics of racing, and what slows cars down. Then make a homemade racing ramp and race to see just how fast your cars can go!

Why it’s awesome

  1. Ready, set, roll

    Two cars ready to race and roll with a friend

  2. Ramp it up

    Test out speed and friction with rolling experiments.

What’s included?

  • 2 bases

  • 8 wheels

  • 4 sticks

  • 2 sticker sheets

  • road tape

  • 2 sticky foam sheets

  • 8 gears

  • 2 car bodies

  • 2 spoilers

  • illustrated instruction sheet

Topics explored

  1. Racing experiments

  2. Science of speed

  3. Building skills

From the desk of the product designer:

Behind the design

We tested over 20 materials to find the best one to use for the speedy race car. You may have seen the winner at breakfast today — chipboard is also used to make cereal boxes!

- KiwiCo Product Designer

By the numbers


Race car styles sketched out


Kids who tested the race cars


Race car stickers stuck to random surfaces in the workshop



3 reviews

Customer images

    Love the independence


    My car loving boy made this while his brother made his pinewood derby. I love how he can be independent other than me reading directions. He feels so good about himself too!

    Love the independence 's image 1



    My grandson loved putting the cars together! We had so much fun.



    This was a little too difficult for my four year old to complete by himself and I'd say the end result is just fine. No strong opinion one way or the other; after putting the stickers on the cars, he played with them for a little bit, but quickly grew bored. If your kiddo has lots of cars already, I'd recommend you spend your money on a different project that gets more playtime once completed.

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